LM48861TMX/NOPB

Audio Amplifiers Overview

The LM48861TMX/NOPB is a stereo Class-AB headphone amplifier manufactured by Texas Instruments. It operates on a single power supply ranging from 1.2 V to 2.8 V and delivers 24 mW of output power into a 32 Ohm load. The device features a total harmonic distortion plus noise (THD+N) of 0.04% and draws a typical operating supply current of 2 mA. It is housed in a uSMD package and supports an operating temperature range from -40°C to +85°C.

Audio Amplifiers Feature Summary

• Stereo audio amplification with analog input capability
• Low-power operation suitable for battery-driven devices
• Class-AB output stage design

Audio Amplifiers Applications

• Mobile phone headphone drivers
• Portable media players
• Personal digital assistants

Audio Amplifiers Procurement Notes

Verify the manufacturer designation, as the component is currently produced by Texas Instruments following the acquisition of National Semiconductor. Confirm the specific suffix 'NOPB' indicates lead-free and RoHS compliance. Ensure the 'MX' suffix corresponds to the correct tape and reel packaging format required for surface-mount assembly processes.

Audio Amplifiers Selection Notes

Select this component for applications requiring low-voltage stereo amplification with minimal external components. The wide supply voltage range accommodates various battery chemistries. Verify that the 24 mW output power meets the impedance requirements of the connected headphones. Consider the thermal performance within the specified operating temperature range during system integration.

Audio Amplifiers Part Context

This part belongs to the LM48861 series of audio amplifiers designed for portable electronics. It serves as a direct replacement for legacy National Semiconductor parts under the Texas Instruments portfolio. The device is optimized for space-constrained designs due to its compact uSMD packaging and low component count requirements.

Audio Amplifiers Replacement Considerations

LM48861TM/NOPB is a verified equivalent variant differing primarily in packaging configuration.